Things You'll Need
Instructions
Remove the three screws on the gun's casing and the one under the cocking part. Make sure to safely store your parts; they are difficult to replace.
Pry back the gray plastic piece on the turret and remove the three screws of the turrets themselves. There should be six turret screws in total.
Saw the turret barrels off the turret itself. Remove all six as cleanly as possible to prevent jamming when you later use the weapon.
Widen the holes on the turret with your rotary cutter so the CPVC pipe fits snugly into both the front and back portions. Take care not to let the cutter run too hot because you don't want to melt the plastic.
Fit the CPVC into the holes and apply your plumber's glue to the barrels. Twist the barrels a few times to ensure even coverage so the pipes will be airtight once dry.
Put the turret back into the gun and screw the back and cover on tightly. Load the weapon and test for air seal. Each barrel should fire without any leaks and with much greater range.